patch 9.1.0484: Sorting of completeopt+=fuzzy is not stable
Problem: Sorting of completeopt+=fuzzy is not stable.
Solution: Compare original indexes when scores are the same.
(zeertzjq)
closes: #14988
Signed-off-by: zeertzjq <zeertzjq@outlook.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/testdir/test_ins_complete.vim b/src/testdir/test_ins_complete.vim
index ad9f497..c2cc484 100644
--- a/src/testdir/test_ins_complete.vim
+++ b/src/testdir/test_ins_complete.vim
@@ -2578,4 +2578,24 @@
unlet g:word
endfunc
+" Check that tie breaking is stable for completeopt+=fuzzy (which should
+" behave the same on different platforms).
+func Test_complete_fuzzy_match_tie()
+ new
+ set completeopt+=fuzzy,noselect
+ call setline(1, ['aaabbccc', 'aaabbCCC', 'aaabbcccc', 'aaabbCCCC', ''])
+
+ call feedkeys("Gcc\<C-X>\<C-N>ab\<C-N>\<C-Y>", 'tx')
+ call assert_equal('aaabbccc', getline('.'))
+ call feedkeys("Gcc\<C-X>\<C-N>ab\<C-N>\<C-N>\<C-Y>", 'tx')
+ call assert_equal('aaabbCCC', getline('.'))
+ call feedkeys("Gcc\<C-X>\<C-N>ab\<C-N>\<C-N>\<C-N>\<C-Y>", 'tx')
+ call assert_equal('aaabbcccc', getline('.'))
+ call feedkeys("Gcc\<C-X>\<C-N>ab\<C-N>\<C-N>\<C-N>\<C-N>\<C-Y>", 'tx')
+ call assert_equal('aaabbCCCC', getline('.'))
+
+ bwipe!
+ set completeopt&
+endfunc
+
" vim: shiftwidth=2 sts=2 expandtab nofoldenable